Alright, let's work through 8363 times 1663 step by step
8363 × 1663 = 1663 × (8363)
+ 1663 × 3 producing 4989
+ 1663 × 60 that is equal 99780
+ 1663 × 300 giving us 498900
+ 1663 × 8000 giving us 13304000

= 13907669
